Page 1: Table Of Contents
This NXR-800 (K, K2) service manual contains a number of sections which differ from the service manual (B51-8795-00) for the NXR-800 (K). For items other than those in this NXR-800 (K, K2) service manual please refer to the service manual (B51-8795-00) for the NXR-800 (K).
Page 2: General
This applies to all parts : components, kits, or chassis. If the herein. Kenwood reserves the right to make changes to any part number is not known, include the chassis or kit number products herein at any time for improvement purposes.
Page 3: System Set-Up
Use this mode to make various settings by PC mode means of the FPU through the RS-232C 1. Connect the NXR-800 to the personal computer with the port. interface cable. 2. When power is applied, the user mode is entered imme-...
Page 4 4-1. Preface model type, when it is written into the ﬂ ash memory. The NXR-800 uses ﬂ ash memory to allow it to be easily • Change the NXR-800 to PC mode, then attach the RS- upgraded when new features are released in the future.
Page 5: Installation
NXR-800 INSTALLATION 1. External Speaker (KES-5) The NXR-800 has a internal built-in speaker, and the ex- Square-type plug ternal speaker output from the TEST/SPKR connector (15- (E31-3228-05) pin) on the rear of the radio is 3W/4Ω. Use external speaker Accessory KES-5.
Page 6: Circuit Description
NXR-800 CIRCUIT DESCRIPTION IC101 divides the VCO oscillating frequency signal and 1. Transmitter main PLL circuit transmitter PLL reference signal (4.5MHz), and compares The transmitter main PLL circuit consists of the VCO the phase with the 100kHz comparison frequency. (Q102 and Q103), PLL IC (IC101), IC102, Q104 and Q106 The phase difference signal produced by the comparing and produces the transmitter frequency signal.
Page 7 NXR-800 CIRCUIT DESCRIPTION Mixer as the first local oscillator Lower hetero signal ap- 2. Receiver PLL circuits proximately +17dBm via Q17, Q23, and Q18. The control The receiver unit (X55-310) has the 1st-PLL circuit for voltage is input to IC30 (ADC) pin16 via IC6.
Page 8: Parts List
NXR-800 PARTS LIST CAPACITORS 2 2 0 • Capacitor value CC45 Color* 010 = 1pF 0 = 22pF 1 = Type ... ceramic, electrolytic, etc. 4 = Voltage rating 100 = 10pF 2 = Shape ... round, square, etc. 5 = Value...
Page 9 Les articles non mentionnes dans le Parts No. ne sont pas fournis. Y : AAFES (Europe) X : Australia M : Oth er Areas Teile ohne Parts No. werden nicht geliefert. NXR-800 (Y54-3250-XX) FINAL UNIT (X45-3820-XX) Desti- Desti- Ref. No.
Page 10 NXR-800 PARTS LIST FINAL UNIT (X45-3820-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation CC73GCH1H080D CHIP C 8.0PF C716 CK73GB1H104K CHIP C 0.10UF CC73GCH1H120J CHIP C 12PF C717,718...
Page 11 NXR-800 PARTS LIST FINAL UNIT (X45-3820-XX) CONTROL UNIT (X53-4130-11) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation RK73FB2B8R2J CHIP R 1/8W R32-0754-05 SEMI FIXED VARIABLE RESISTOR (10K) R35,36...
Page 12 NXR-800 PARTS LIST CONTROL UNIT (X53-4130-11) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation CK73FB0J106K CHIP C 10UF C170 CK73GB1H102K CHIP C 1000PF CK73GB1H102K CHIP C 1000PF C172...
Page 13 NXR-800 PARTS LIST CONTROL UNIT (X53-4130-11) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C276 CC73GCH1H100D CHIP C 10PF C375,376 CK73GB1H102K CHIP C 1000PF C277 CK73GB1H103K CHIP C 0.010UF...
Page 14 NXR-800 PARTS LIST CONTROL UNIT (X53-4130-11) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation L33-1476-05 SMALL FIXED INDUCTOR R114 RK73GB2A223J CHIP R 1/10W L33-1475-05 SMALL FIXED INDUCTOR R115...
Page 15 NXR-800 PARTS LIST CONTROL UNIT (X53-4130-11) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R222 RK73GB2A473J CHIP R 1/10W R467,468 RK73GB2A000J CHIP R 1/10W R230,231 RK73GB2A473J CHIP R...
Page 16 NXR-800 PARTS LIST CONTROL UNIT (X53-4130-11) CONTROL UNIT (X53-4140-11) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation IC18 XC6201P182MR MOS-IC C337 CK73HB1H102K CHIP C 1000PF IC19 NJM2732V BI-POLAR IC...
Page 17 NXR-800 PARTS LIST CONTROL UNIT (X53-4140-11) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C449,450 CK73HB1A104K CHIP C 0.10UF C572 CE32BM1E470M CHIP EL 47UF 25WV C453 CK73GB1H103K CHIP C 0.010UF...
Page 18 NXR-800 PARTS LIST CONTROL UNIT (X53-4140-11) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C804 CK73FB0J106K CHIP C 10UF CP775-778 RK75HA1JR00J CHIP-COM 0.00 1/16W C805-807 CK73HB1E103K CHIP C 0.010UF...
Page 19 NXR-800 PARTS LIST CONTROL UNIT (X53-4140-11) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R464 RK73HB1J472J CHIP R 4.7K 1/16W R624 RK73HB1J473J CHIP R 1/16W R469 RK73HB1J470J CHIP R...
Page 20 NXR-800 PARTS LIST CONTROL UNIT (X53-4140-11) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R778 RK73HB1J000J CHIP R 1/16W R916-923 RK73HB1J000J CHIP R 1/16W R779 RK73HB1J104J CHIP R...
Page 21 NXR-800 PARTS LIST CONTROL UNIT (X53-4140-11) RX UNIT (X55-3100-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation Q300 2SC4738(GR)F TRANSISTOR CC73GCH1H101J CHIP C 100PF Q301 DTC114EUA DIGITAL TRANSISTOR...
Page 22 NXR-800 PARTS LIST RX UNIT (X55-3100-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation ✽ C147 CS77CC1C330M CHIP TNTL 33UF 16WV C241,242 CC73GCH1H150J CHIP C 15PF C149,150 CC73GCH1H180J...
Page 23 NXR-800 PARTS LIST RX UNIT (X55-3100-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C326 CC73GCH1H151J CHIP C 150PF C411 CC73GCH1H121J CHIP C 120PF C327 CK73GB1H102K CHIP C...
Page 24 NXR-800 PARTS LIST RX UNIT (X55-3100-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C507 CK73GB1H104K CHIP C 0.10UF C629 CC73GCH1H471J CHIP C 470PF C508 CK73FB0J106K CHIP C...
Page 25 NXR-800 PARTS LIST RX UNIT (X55-3100-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation L41-1575-33 SMALL FIXED INDUCTOR (0.015UH) L115 L41-8275-33 SMALL FIXED INDUCTOR (0.082UH) L41-1205-33 SMALL FIXED INDUCTOR (12UH)
Page 26 NXR-800 PARTS LIST RX UNIT (X55-3100-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R53,54 RK73GB2A000J CHIP R 1/10W R135,136 RK73GB2A332J CHIP R 3.3K 1/10W RK73FB2B271J CHIP R...
Page 27 NXR-800 PARTS LIST RX UNIT (X55-3100-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R218,219 RK73GB2A180J CHIP R 1/10W R295 RK73GB2A104J CHIP R 100K 1/10W R220 RK73GB2A102J CHIP R 1.0K...
Page 28 NXR-800 PARTS LIST RX UNIT (X55-3100-XX) TX UNIT (X56-3120-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R417 RK73GB2A000J CHIP R 1/10W 2SC4725 TRANSISTOR R430,431 RK73GB2A331J CHIP R...
Page 29 NXR-800 PARTS LIST TX UNIT (X56-3120-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C137 CK73GB1H103K CHIP C 0.010UF C207 CC73GCH1H070D CHIP C 7.0PF C138 CC73GCH1H0R5B CHIP C 0.5PF...
Page 30 NXR-800 PARTS LIST TX UNIT (X56-3120-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C304 CC73GCH1H331J CHIP C 330PF C379 CK73GB1H103K CHIP C 0.010UF C305 CC73GCH1H180J CHIP C...
Page 31 NXR-800 PARTS LIST TX UNIT (X56-3120-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C492-495 CK73GB1H104K CHIP C 0.10UF C642 CC73GCH1H221J CHIP C 220PF C496 CC73GCH1H221J CHIP C...
Page 32 NXR-800 PARTS LIST TX UNIT (X56-3120-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C920-925 CK73GB1H104K CHIP C 0.10UF L303 L41-1095-33 SMALL FIXED INDUCTOR (1.0UH) C926 CK73GB1H102K CHIP C...
Page 33 NXR-800 PARTS LIST TX UNIT (X56-3120-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation CP973,974 RK74GB1J681J CHIP-COM 680 1/16W R208 RK73GB2A101J CHIP R 1/10W R101 RK73GB2A000J CHIP R...
Page 34 NXR-800 PARTS LIST TX UNIT (X56-3120-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R317 RK73GB2A104J CHIP R 100K 1/10W R430,431 RK73GB2A100J CHIP R 1/10W R318 RK73GB2A472J CHIP R 4.7K...
Page 35 NXR-800 PARTS LIST TX UNIT (X56-3120-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R518 RK73GB2A104J CHIP R 100K 1/10W R592 RK73GB2A273J CHIP R 1/10W R519 RK73GB2A124J CHIP R...
Page 36 NXR-800 PARTS LIST TX UNIT (X56-3120-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R879 RK73GB2A104J CHIP R 100K 1/10W IC603 XC6204B332M MOS-IC R881 RK73GB2A000J CHIP R 1/10W...
Page 37 NXR-800 PARTS LIST TX UNIT (X56-3120-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation Q701,702 SSM3K15TE(F) Q920-930 UMG1N TRANSISTOR Q931 2SC4116(Y)F TRANSISTOR Q932 2SA1586(Y)F TRANSISTOR Q960-976 UMG1N TRANSISTOR...
Page 38: Exploded View
NXR-800 EXPLODED VIEW IC12 : N09-2292-05 IC11 M2 x 8 : N30-2008-43 D M2.6 x 6 : N30-2606-48 X45-382 M3 x 16 : N30-3016-43 M3 x 6 (F) : N32-3006-43 IC10 G M4 x 8 (F) : N32-4008-43 703x3 : N67-3008-48...
Page 39 NXR-800 EXPLODED VIEW 17x3 45-382 X53-414 IC329 X53-414 IC808 X53-413 IC29 IC24 IC25 X53-413 703x4 X45-382 X55-310 EXCITER FINAL CONTROL Parts with the exploded numbers larger than 700 are not supplied. If a part reference number is listed in a box on the exploded view of the PCB (for example,...
Page 40: Packing
NXR-800 PACKING 36 Blade fuse (7.5A/32V) Protection bagx2 (F05-7521-05) 48 Bracket (Side) 34 15P plug (J29-0725-04)x2 (E37-1381-05) 10 Instruction manual Protection bagx4 (B62-1994-00) Protection bag 3 Front glass (B10-2781-04) 52 Handle (K01-0421-05) Protection bag Protection sheet A Dressed screw (N08-0563-04) x1...
Page 41: Trouble Shooting
Connect a cross-wired RS232C cable to COM port on the *2: ppearing this information means the boot program at front panel of NXR-800. Plug the other end of the cable the RF control MPU (IC34) is correctly working. to PC. (See Fig 2.)
Page 42 NXR-800 TROUBLE SHOOTING 1-2. Hardware Traceability (Method1) ■ Procedure for IC703 (Main MPU) traceability Abnormal Power Source Voltage Conﬁ rmation of IC329 (pin 5) output condition Test Point Normal Output Voltage Remove R711 and R721. IC329 (pin 4) 3.3VDC If the voltage is 3.3VDC, IC703 is malfunctioning.
Page 43 NXR-800 TROUBLE SHOOTING ■ Traceability Procedure of IC323 (RX_DSP) Abnormal Conﬁ rmation of Power Source Voltage Conﬁ rmation of IC307 (pin 1) output condition Test Point Normal Output Voltage Remove R505. If the output voltage is 1.5VDC, IC307 (pin 1) 1.5VDC...
Page 44 NXR-800 TROUBLE SHOOTING ■ Traceability Procedure of IC17 (Flash Memory of RF control MPU) Abnormal Conﬁ rmation of Power Source Voltage Conﬁ rmation of IC329 (pin 5) output. condition Test Point Normal Output Voltage Remove R159 and if 3.3VDC, one of IC17, IC34, IC329 (pin 5) 3.3VDC...
Page 45 Correct condition Parts other than IC34 are malfunctioning. 1-3. Hardware traceability (Method 2) The NXR-800 control circuit executes the following proce- 5. The Main MPU (IC703) conﬁ rms the operational status of dures when the system starts up. the Modem control MPU (IC325) and the RF control MPU 1.
Page 46 NXR-800 TROUBLE SHOOTING ■ External DC 13.8V Power Source applied to the NXR-800 Terminal Refer to the power supply diagram sequence below. Audio AMP (IC29) DC/DC converter LED, Option (IC10, Q2) 50MPU 5V_AVR (IC16) RF_Control_MPU I/O (IC34) Switched by Modem Control...
Page 47 NXR-800 TROUBLE SHOOTING ■ Start-up of each Control Block • Modem Control MPU Block • Main MPU Block Component elements: · Modem control MPU: IC325 Component elements: · Flash memory: IC314 · Main MPU: IC703 · RX DSP: IC323 · Flash Memory: IC702 ·...
Page 48 5. If necessary, write the FPU data used by the customer with the KPG-109D or KPG-110SM. Note: • When a new printed circuit board is used, the Kenwood ESN changes, as does the Repeater Information display of the KPG-109D, but this does not have any effect on the operation of the transceiver.
Page 49: Adjustment
NXR-800 ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Speciﬁ cations Frequency Range 400 to 512MHz 1. Standard Signal Generator Modulation Frequency modulation and external modulation (SSG) Output 0.1µV to greater than 1mV Input Impedance 50Ω 2. Power Meter...
Page 50 NXR-800 ADJUSTMENT Flat cable (36-pin) about 256mm (E37-0979-05) 2.5MHz 2.5MHz 3dB max. ANT Jig for BPF adjustment (E30-3418-08) BPF center frequency (Production default) K: 465MHz, K2: 496MHz Pass bandwidth ±2.5MHz at 3dB Fig. 1 MCF (Wide) Test Signaling 7.5kHz 7.5kHz ■...
Page 51 NXR-800 ADJUSTMENT Adjustment Points FC1 FC2 TX IN PWR CONT PA CURR PWR PRT ANT SW CN19 FINAL UNIT (X45-3820-XX) RX ANT Component side VR1: Coupler ADJ VR2: High Transmit Power (Pre ADJ) CN46 CN40 L132 L133 L134 L135 CN41...
Page 52 NXR-800 ADJUSTMENT Alignment Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 1. Setting 1) Connect the DC power output to the rear panel DC terminal (13.8V). 2) Connect the front panel COM port (D-sub 9 connector) to the PC serial port with a cross cable.
Page 53 NXR-800 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 10. Receive 1) A: Low Check 0.8~1.2V VCO Lock Voltage 2) A: High 3.5~4.2V (Check) 3) B: Low 0.8~1.2V 4) B: High 3.0~3.7V K 3.3~4.0V K2...
Page 54 NXR-800 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 18. High Frequency Power meter Rear TX ANT 5.0W ±0.1W Transmit 1) Low Ammeter 4.4A or less Power 2) Center 3) High Attach the EXCITER/FINAL shield cover.
Page 55 NXR-800 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 22. Standard 1) Channel: 3 (Center) Deviation Rear TX ANT Check 4.5mV±1.5mV Modulation Wide/Narrow: Analog Wide meter Front Check Connect the deviation meter...
Page 56 NXR-800 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 26. Test Tone 1) Channel: 3 (Center) Deviation Rear TX ANT ±3.00kHz ±0.05kHz Deviation Wide/Narrow: Analog Wide meter Connect the deviation meter Connect the deviation meter to the TX ANT end via the ATT.
Page 57 NXR-800 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 31. BPF 1) Tracking generator Tracking Rear RX ANT L132 Adjust it by the pro- Refer to Fig. 1. (Page 50) Output: –20dBm...
Page 58 NXR-800 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 37. Tight 1) Wide/Narrow: Analog Wide Rear RX ANT Adjust it to the level Squelch Connect the SSG to the RX ANT. Oscilloscope TEST/ to open the squelch.
Page 59 To adjust the KXK-3 OCXO unit, some preparations are required. 1. The NXR-700 or NXR-800 with the KXK-3 OCXO unit must be warmed up at least 24 hours before the adjustment is made. The environment temperature must be stable.
Page 60: Pc Board
NXR-800 PC BOARD FINAL UNIT (X45-3820-XX) -10 : K -11 : K2 Component side view (J79-0149-09) L702 C709 IC701 IC12 C702 C706 C701 C705 C704 L704 C717 IC11 C190 ANT SW C189 J79-0149-09 REFLECT CN19 C102 MONITOR C104 C124 C149...
Page 61 NXR-800 PC BOARD FINAL UNIT (X45-3820-XX) -10 : K -11 : K2 Component side view (J79-0149-09) CN20 SIGNAL R144 PWR CONT R142 PA CURR PWR PRT C128 R104 C115 C127 FORWARD C141 J79-0149-09 A/5 CN28 CN30 – – – 3 SB...
Page 62 NXR-800 PC BOARD FINAL UNIT (X45-3820-XX) -10 : K -11 : K2 Foil side view (J79-0149-09) J79-0149-09 A/5 – – CN24 CN23 – CN26 CN25 – J79-0149-09 J79-0149-09 B/5 Ref. No. Address Ref. No. Address Ref. No. Address IC15 D902...
Page 63 NXR-800 PC BOARD FINAL UNIT (X45-3820-XX) -10 : K -11 : K2 Foil side view (J79-0149-09) C170 R106 R138 R137 R110 R136 C167 C150 IC15 R139 R107 L703 C713 C716 C108 J79-0149-09 CN23 C908 L900 C902 CN25 C914 J79-0149-09 E/5...
Page 64 NXR-800 PC BOARD RX UNIT (X55-3100-XX) -10 : K -11 : K2 Component side view (J79-0151-09) L132 L133 L134 L135 C147 C131 C100 C109 CN15 CN23 CN27 C113 R364 C164 C179 C206 C154 C168 C158 C214 R116 C220 R103 C151...
Page 65 NXR-800 PC BOARD RX UNIT (X55-3100-XX) -10 : K -11 : K2 Component side view (J79-0151-09) CN46 L135 NARROW CN41 WIDE C675 R175 R179 R166 C500 C335 R171 IC15 CN16 CN62 C357 C484 R197 R192 C432 R174 R178 R165 C334...
Page 66 NXR-800 PC BOARD RX UNIT (X55-3100-XX) -10 : K -11 : K2 Foil side view (J79-0151-09) C242 C235 C150 C141 C174 C289 C167 C197 C254 C110 C117 R108 C212 C358 C218 R118 C224 C229 C149 C140 C241 C234 C173 C166...
Page 67 NXR-800 PC BOARD RX UNIT (X55-3100-XX) -10 : K -11 : K2 Foil side view (J79-0151-09) R410 R407 C624 C659 R295 C192 C176 R101 R115 C198 IC27 IC26 C227 R119 C548 C547 R133 C553 C552 R436 R142 C487 C671 R435...
Page 68 NXR-800 PC BOARD TX UNIT (X56-3120-XX) -10 : K -11 : K2 Component side view (J79-0153-09) C151 C811 C805 R801 C801 C812 L801 C803 CN806 C161 IC802 C809 IC803 C806 R803 C802 CN303 C808 R802 MB_CV1 IC801 CN115 CN116 CN109...
Page 69 NXR-800 PC BOARD TX UNIT (X56-3120-XX) -10 : K -11 : K2 Component side view (J79-0153-09) X401 IC809 8OCXO R418 C415 R415 R416 R414 C410 R412 R411 R404 Q401 IC808 L401 L402 C408 R409 R403 C403 C406 C573 C578 C423...
Page 70 NXR-800 PC BOARD TX UNIT (X56-3120-XX) -10 : K -11 : K2 Foil side view (J79-0153-09) C481 R503 R511 C480 C435 L414 C439 IC405 C466 C472 R484 C468 R500 R488 C442 C451 R480 L604 C463 Q416 C465 C620 C447 L410...
Page 71 NXR-800 PC BOARD TX UNIT (X56-3120-XX) -10 : K -11 : K2 Foil side view (J79-0153-09) R134 C154 IC104 R137 R891 C158 C427 C435 R888 C439 C160 C466 L405 L408 R889 Q412 C442 C455 R475 L410 C458 C309 IC302 C305...
Page 72 NXR-800 PC BOARD CONTROL UNIT (X53-4130-XX) -10 : K,K2 -11 : For service Component side view (J79-0011-09) C372 R389 R550 R551 CN56 SPG 2 R390 C166 + C170 C144 C141 R204 50MPU R201 50MPU R202 R198 C405 R211 STB1 R208...
Page 73 NXR-800 PC BOARD CONTROL UNIT (X53-4130-XX) -10 : K,K2 -11 : For service Component side view (J79-0011-09) R535 C104 R534 C109 IC11 R108 CLEAR/ C106 CODE RXEO SCR_PTT RXEI SCRAMBLE C107 C108 R188 C130 IC10 R107 C105 AOUTL MMUTE C133...
Page 74 NXR-800 PC BOARD CONTROL UNIT (X53-4130-XX) -10 : K,K2 -11 : For service Foil side view (J79-0011-09) R434 C500 C415 C403 C169 R171 R149 C189 R150 C446 C188 R457 R478 R415 C424 R441 C423 R154 C425 C426 R173 R459 R444...
Page 75 NXR-800 PC BOARD CONTROL UNIT (X53-4130-XX) -10 : K,K2 -11 : For service Foil side view (J79-0011-09) CN69 R475 R149 C204 C446 C188 R160 R161 R168 C477 R428 R429 C418 R430 C437 C419 R406 C396 R283 C212 C216 R195 C213...
Page 76 NXR-800 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service Component side view (J79-0012-09) Component side view (J79-0012-09) CN713 IC329 C862 S700 R389 C443 C572 L325 IC306...
Page 77 CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service Component side view (J79-0012-09) R960 L326 C871 R961 L327 C785 IC712 C790 R834 C817 IC724 C872 R897 R388 C784 IC713 C793 R832 C816 C843 C842 C841 C807 C806 C805 IC723 R886 R874 R887...
Page 78 IC329 C862 S700 R389 C443 C572 L325 IC306 C818 IC725 IC708 L314 Q707 Q700 R779 C773 C820 IC710 C703 IC726 R802 C707 C569 R731 R733 R487 R727 C728 C449 C526 IC308 R388 L313 C814 R735 C712 R522 R720 C856 R521 R766 R526 R892...
Page 79 NXR-800 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service Component side view (J79-0012-09) CN713 C506 R442 R449 R423 R401 R487 R505 C526 C527 R535 C538 R530 R911 R918 R686 R541 Q301 R403 R547 R446 R554 Q302...
Page 80 NXR-800 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service Foil side view (J79-0012-09) Foil side view (J79-0012-09) C574 R680 C861 C570 R730 C730 C747 R319 R318...
Page 81 NXR-800 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service Foil side view (J79-0012-09) C747 C588 C590 C592 C591 C594 C595 C601 R622 C598 R461 R631 R459 R460 R458 C599 C597 R417 C305 R457 C475 R632 C471...
Page 82 C574 R680 C861 C570 R730 C730 IC704 C717 R517 R516 CN716 C864 C863 C437 C426 R417 R552 C475 C544 C471 R398 C442 R567 R569 R912 Q303 R527 CN700 R591 C808 IC707 IC307 R935 C360 C359 C813 R934 C834 R951 IC728 Ref.
Page 83 CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service Foil side view (J79-0012-09) R319 R318 C355 C362 Q706 IC302 R885 R884 C815 R387 R915 R914 R907 R827 CP791 CP790 L320 C420 C821 C436 CP789 C800 CP788 R957 R875 L318 CP787 R956 R876...
Page 84 NXR-800 BLOCK DIAGRAM IC300 IC325 TC7SET126FU-F CONTROL UNIT 3625MGP396GP 465~480MHz (K) 450~465MHz (K) BER_CLK BER_CLK_L CN402 494.5~512~308MHz (K2) 477~494.5MHz (K2) X53-414 FINAL UNIT BER_EN BER_DAT CN802 Q202 Q201 TX UNIT X45-382 A/5 Q203 IC603 CN402 BER_DAT_L 450~480MHz (K) RD01MUS1 2SC5337...
Page 85 465~480MHz (K) 494.5~512~308M FINAL UNIT CN802 Q203 X45-382 A/5 450~480MHz (K) RD01MUS1 IC10 D11,16 477~512MHz (K2) RA13H4452M101 L709CER CN22 D201 HSM88AS-E IC201 IC201 TX ANT IC701 NJM2904E NJM2904E BH2220FVM LTC6101BiS5-F CN19 Q102 D_PC X45-382 HSB88WS HSB88WS 2SK508NV( VCo_MoD CN29 SSM3K15TE(F) Q105 CN20 2SC4116(BL)F...
Page 86 IC300 TC7SET126FU-F 3625 BER_CLK_L 465~480MHz (K) BER_CLK 450~465MHz (K) CN402 494.5~512~308MHz (K2) 477~494.5MHz (K2) BER_EN BER_DAT Q202 Q201 TX UNIT Q203 IC603 CN402 BER_DAT_L RD01MUS1 2SC5337 2SC3356-A(R24) XC6204B332M X56-312 A/3 IC315 IC319~IC321 PLL_12_SCLK4, PLL_12_SDo4 IC301 ADF4001BRUZ IC705 TC7SET126FU-F PLL_12_EN 3.3C NJM78M05DL1AZB IC318 904E...
Page 87 IC325 CONTROL UNIT 3625MGP396GP BER_CLK_L X53-414 BER_EN BER_DAT_L PLL_12_SDo4 PLL_12_EN REF_SW,REF_SW2 EXT_EXiST,REF_EXiST REF_iN_oUT,oX_SDi2 oCXo_VR_EN,oCXo_oN PLL_12_LDT oCXo_EXIST,oCXo_CURR VCXo_DA_EN,REF_LDT PLL_19_EN,PLL_19_CE oX_SDo2,oX_SCLK2 C4738(GR) CN400 oX_SCL,oX_SDA internal X56-312 TEST/SPKR SPEAKER CN805 S700 DiPSW1,2 33MPU RX_PWR_SAVE,AMP_SW,AF_MUTE, EVoL_DATA,EVoL_LD,EVoL_CLK oCXo_ST_G,oCXo_ST_R,BEEP,PWR_ST_R 2SD2114K(W) CONTROL UNIT CN401 DTC144EUA Ao1_N Over VoLUME_iN X53-413 2SA1955A-F...
Page 88: Block Diagram
NXR-800 BLOCK DIAGRAM SMD185F-2 TX UNIT SR_CLK,SR_DATA TX UNIT CN920 CN960 SR_oE,STB X56-312 B/3 CN921 X56-312 C/3 50MPU 50MPU 50MPU 50MPU IC920 STB,CLK,oE STB,SR_CLK TC7SET126FU-F IC960 D960 SR_oE Q960~Q963 SR_CLK 4BCFV BU4094BCFV PSA0511EWA-FG1 SR_oE,STB1 UMG1N SR_CLK,SR_oE,STB IC922 STB_L TC7SET126FU-F SR_CLK...
Page 89 JDP4 X56-312 CN407 RX UNIT TA75S01F-F X55-310 LNA_VE IC30 BUFF FINAL UNIT D9,D10 D13,D1 3SK317-E L133 2SC5337 L134 L135 W02-1940-05 JDP4P02U XF1 RD01MUS1 L132 X45-382 D/5 JDP4P02 RX ANT IC701 IC703 NJM78L05UA IC702 TK72130CS RD01MUS1 3SK317-E CN36 CN701 CN42 iF_BW_SW CN42 2SC4116(BL)F 2SK508NV...
Page 90 CKE,CKio IC707 48LC8M16A2P75i RD/WR IC11 WE2/DQM2 S24CS02AFJTBG WE3/DQM3 SDRAM A2~A15 Q15,Q16 RD/CASS IC12 2SJ484 EEPROM CS3,RAS D16~D31 NJM7805FA LTC6101BiS5-F AD7418ARMZ oX_SCL SSM3K15TE CKE,CKio oX_SDA IC719 LAN91C111i-NU NLEDA NLEDA J700 LAN_iNT oCXo_CURR NLEDB NLEDB SSM6L05FU TPi+,TPi- TP1+,TP1- EEDi REF_SW2 IC720 TP0+,TP0- TPo+,TPo- EEDo A1~A15...
Page 91 132_EN,13 STXo_ARXo,SRXo_ATXo ADSP_CK_SFT,SC_SH,E_PTT_SH 2DA_EN,2D STXo_ARXo A_RXo 3DA_EN,8A SDi1,SCLK SYS_RST SYS_RST IC27 IC325 SC_SH,E_PTT_SH TC7SET126FU-F IC32,33 io1~io6,SC SRXo_ATXo A_TXDo Ai1~Ai3,EM Hi_VoL_DET 50MPU_CoNT 50MPU_CoNT E_PTT IC325 Hi_VoL_DET IC28 LAN_iNT 50MPU TC7SH126FU-F 50MPU DC50 DC50 33SH 33SH Si1.8 33MPU 33MPU E_PTT 50MPU_A 50MPU_A S700 33MPU_A 33MPU_A...
Page 92 132_EN,132_CE 2DA_EN,2DA_CE 3DA_EN,8AD_EN,SDo1 SDi1,SCLK1 io1~io6,SC CN58 Ai1~Ai3,EMoN, E_PTT Surge TC7SH126FU-F protect IC32,33 E_PTT SC_SH E_PTT_SH CoNTRoL I/O RA,TA,RD,TD AUDio BLoCK BER_DAT BER_CLK _D_iN _D_oUT CN56 CN58 IC19 6FUF LA4425A SPo CN59 2SJ506-E(S) DTC114EUA AMP_SW DTC363EU AF_MUTE CN58 IC41 IC23 TC7SH00FU-F TC114EUA TC7SH08FU-F oPTioN...
Page 93: Interconnection Diagram
NXR-800 INTERCONNECTION DIAGRAM TEST/SPKR (PANEL ViEW) FINAL UNIT CONTROL I/O (PANEL VIEW) X45-382 E/5 CN923 CN905 CN960 CN920 VOLUME_IN VOLUME_IN 33MPU 33MPU J901 50MPU 50MPU 33AUD 33AUD TX UNIT X56-312 B/3 TX UNIT PTT_TXD_SCM SR_oE X56-312 C/3 SR_oE SCM_EN SCM_EN...
Page 94: Interconnection Diagram
NXR-800 INTERCONNECTION DIAGRAM CN960 50MPU TX UNIT SR_oE X56-312 C/3 SR_CLK SR_DATA LED 1 LED 10 RX UNIT CN701 CN36 X55-310 CN42 CN57 FINAL UNIT X45-382 D/5 D_GND D_GND E2PRoM_SDA E2PRoM CoNT_5.0V CoNT_5 E2PRoM_SCL E2PRoM D_GND D_GND AD_CS AD_CS iF_BW_SW...
Page 95 TEST/SPKR (PANEL ViEW FINAL UNIT X45-382 E/5 CN923 CN905 CN920 VOLUME_IN VOLUME_IN 33MPU 33MPU J901 50MPU 33AUD 33AUD TX UNIT X56-312 B/3 PTT_TXD_SCM SR_oE SCM_EN SCM_EN SR_CLK HOOK_RXD_SCM SR_DATA SCM_EN PTT_TXD_SCM PTT_TXD_SCM LED 1 HooK_RXD_SCM HOOK_RXD_SCM LED 10 CN57 D_GND E2PRoM_SDA CoNT_5.0V E2PRoM_SCL...
Page 96 (PANEL ViEW) CONTROL I/O (PANEL VIEW) OPTION (OCX KXK-3 INT SP CN56 CN804 CoNT_5.0V CoNT_5.0V D_GND D_GND CoNT_5.0V CoNT_5.0V D_GND D_GND D_GND D_GND TEMP_PRT TEMP_PRT ANT_SW ANT_SW DDS_EN DDS_EN VR_EN VR_EN 440_EN 440_EN 132_EN 132_EN 440_CE 440_CE 132_CE 132_CE 2DA_EN 2DA_EN 3DA_EN 3DA_EN...
Page 97 ON (OCXO) KXK-3 FINAL UNIT X45-382 A/5 CN806 CN20 NC(FAN_CURR2) NC(FAN_CURR2) CN22 TX ANT PA_CURR PA_CURR CN19 MONITOR PORT FAN_CURR FAN_CURR FWD_PWR FWD_PWR RFL_PWR RFL_PWR FAN 1 PWR_PRT PWR_PRT PWR_CONT PWR_CONT FAN_CONT FAN_CONT FAN_CONT2 FAN_CONT2 TEMP_RST TEMP_RST ANT_SW ANT_SW TEMP_PRT TEMP_PRT D_GND D_GND...
Page 98 RX_IF_VN...
Page 99 CONTROL UNIT2 X53-414 F_VN CN27 CN23 CN25 FINAL UNIT FINAL UNIT X45-382 C/5 X45-382 B/5 CN28 CN30 CN24 CN29 CN26 PC CONTROL...
Page 100 TX UNIT X56-312 A/ CN400 CN805 REF_SW2 REF_SW2 REF_SW REF_SW oX_SCL oX_SCL EXT_EXiST EXT_EXiST oX_SDA oX_SDA REF_EXiST REF_EXiST iMP_H_L iMP_H_L REF_iN_oUT REF_iN_oUT oX_SDi2 oX_SDi2 oCXo_VR_EN oCXo_VR_EN oCXo_oN oCXo_oN oCXo_CURR oCXo_CURR oCXo_EXiST oCXo_EXiST VCXo_DA_EN VCXo_DA_EN REF_LDT REF_LDT PLL_19_EN PLL_19_EN PLL_19_CE PLL_19_CE oX_SDo2 oX_SDo2 oX_SCLK2...
Page 101 D_GND D_GND CN21 X UNIT 56-312 A/3 CN802 TX SIGNAL CN801 REF_IN(10MHz) CN408 REF_OUT(10MHz) CN403...
Page 102: Schematic Diagram
NXR-800 SCHEMATIC DIAGRAM POWER MODULE IC10 RA13H4452M101 FINAL UNIT(PA SECTION) (X45-3820-XX)(A/5) TX H:3.8V TX H:13.7V L:3.3V L:13.8V TX:100mW :13.8V RX:0W 3DB ATT TX UNIT C141 X56-312 (A/3)-CN802 RF IN 470p TX H:3.8V L:3.5V 470p OVERVOLTAGE PROTECTION 02CZ5.6(Y)F L92-0179-05 0.01u CURRENT SENSE...
Page 103 NXR-800 SCHEMATIC DIAGRAM • Note : The components marked with a dot ( ) are parts of layer 1. FINAL UNIT (PA SECTION) (X45-3820-XX) (A/5) TX H:5W ANT SW L:0.5W RF SW RF SW DIRECTIONAL COUPLER C105 C122 C123 CN22...
Page 104 NXR-800 SCHEMATIC DIAGRAM RX UNIT(X55-3100-XX) W:-93.2dBm W:-90dBm N:-92.3dBm N:-90.5dBm CN41 MONITOR_PORT W:-117.8dBm W:-116.7dBm K:8.5V N:-116.6dBm N:-117.2dBm K2:8.6V K:1.0V F10-2379-04 F10-2409-04 K2:3.5V 2SC5337 L132 L134 L135 L133 K:0.2V C659 C624 C117 R410 R407 K2:2.8V 470p 100p 100p 120p W02-1940-05 470p 470p...
Page 105 NXR-800 SCHEMATIC DIAGRAM RX UNIT (X55-3100-XX) W:7.8V W:7.8V RF SW N:0.5mV N:0.2mV W:7.4V W:7.3V W:3.7V W:3.2V W:3.2V N:0.5mV N:4.6mV L112 N:5.2mV RF AMP JDP4P02U N:0.6mV N:0.2mV L39-1476-05 W:3.6V N:4.3mV RD01MUS1 W:2.2V W:2.2V RF AMP L71-0646-05 N:0.8mV N:0.2mV 3.3u C140 C149...
Page 106 NXR-800 SCHEMATIC DIAGRAM RX UNIT (X55-3100-XX) W:-75.7dBm L128 N:-75.5dBm DC SW L34-4725-05 L123 CN47 W:-74.0dBm N:-76.0dBm SSM3K15TE(F) 3.3u R270 C470 JDP4P02U RF SW 470p DTA144EE C459 C573 R351 DC SW 220p 0.01u DETECTOR MA3J742 C461 C510 C477 R285 C577 220p 0.1u...
Page 107 NXR-800 SCHEMATIC DIAGRAM RX UNIT (X55-3100-XX) RIPPLE FILTER AMP 2SC4116(BL)F OP-AMP R120 R128 VCO_A:457.5MHz 1.18V VCO_B:472.5MHz 2.22V VCO_A:488.5MHz 3.04V LMC7101BIM5 VCO_B:503.95MHz 2.91V CN63 OUTPUT INPUT+ 8.1V INPUT- R430 C113 C175 6p(B) 100p OSCILLATOR FREQUENCY CONTROL 2SK508NV(K53) C142 0.5p 1SV283F FREQUENCY A_ON:2.6V...
Page 108 NXR-800 SCHEMATIC DIAGRAM RX UNIT (X55-3100-XX) R377 R379 W:2.65V N:2.65V W:2.36V OP-AMP N:2.36V IC33 CN64 LMC7101BIM5 OUTPUT INPUT+ INPUT- C618 100p RIPPLE FILTER AMP 8.1V R405 R167 2SC4116(BL)F R201 R210 R183 R193 R236 C408 R223 C315 R237 FREQUENCY 8.9V CONTROL OSCILLATOR 1.6V...
Page 109 NXR-800 SCHEMATIC DIAGRAM RX UNIT (X55-3100-XX) CONTROL UNIT CN43 RX_IF_VN X53-414 -CN300 CN42 CN60 RX_PoWER_SAVE CN48 DDS_EN VCO_BAND_SW CN49 PLL1_EN DA_EN CN50 SIF_CLK CN51 STD Devi SIF_DAT AT RX ANT -47dBm INPUT N:100mVrms RX_AUDIO W:109mVrms N:94Vrms CN52 PLL_PWR_SAVE W:93Vrms CN66...
Page 110 NXR-800 SCHEMATIC DIAGRAM TX UNIT(X56-3120-XX)(A/3) C193 C194 C189 E100 F10-3081-04 Q102 K:450-465MHz --> L125 D108 2SK508NV(K52) C195 R176 C182 L128 R184 K2:477-494.495MHz --> 0.5p(B) 1SV283F CN104 CN108 CN112 CN116 CN120 CN102 CN106 CN110 CN114 CN118 R881 VCO_A:1.1V VCO_B:1.6V DC SW RF VCO VCO_A:1.5V...
Page 111 NXR-800 SCHEMATIC DIAGRAM TX UNIT (X56-3120-XX) (A/3) VOLTAGE REGULATOR 13.8V 13.8V IC104 NJM2386ADL3-09 RIPPLE FILTER AMP 7.9V Q105 8V #1ʼ 2SC4116(BL)F R134 9Vʼ C163 R139 T:7.8V 470p R:0V T:7.9V R:0V T:7.2V R:0V C156 C162 9Vʼ 470p 470p T:1.5V T:1.4V R:0V R:0V T:1.6V...
Page 112 NXR-800 SCHEMATIC DIAGRAM TX UNIT (X56-3120-XX) (A/3) K:450-480MHz--> K:450-480MHz--> K2:477-512MHz--> K2:477-512MHz--> 13.8V 13.8V 8V #1ʼ GND SPRING CN130 SCLK0 SDo0 T:7.8V 8V #1 8V #1 R:0V 5V #2 <--19.2MHz VOLTAGE 5V #1 REGULATOR 8V #2 C221 R224 R226 3-STATE BUFFER...
Page 113 NXR-800 SCHEMATIC DIAGRAM TX UNIT (X56-3120-XX) (A/3) K:450-480MHz--> K:450-480MHz--> K2:477-512MHz--> K2:477-512MHz--> 13.8V 13.8V SCLK0 SCLK0 SDo0 SDo0 8V #1 8V #1 5V #2 5V #2 <--19.2MHz <--19.2MHz 5V #1 5V #1 8V #2 8V #2 When kxk-3 or extenal reference signal is used.
Page 114 NXR-800 SCHEMATIC DIAGRAM TX UNIT (X56-3120-XX) (A/3) K:450-480MHz--> K:450-480MHz--> K2:477-512MHz--> K2:477-512MHz--> 13.8V 13.8V SCLK0 SCLK0 SDo0 SDo0 8V #1 8V #1 5V #2 5V #2 <--19.2MHz <--19.2MHz 5V #1 5V #1 8V #2 8V #2 VOLTAGE REGULATOR IC704 NJM78M08DL1AZB 13.8V...
Page 115 NXR-800 SCHEMATIC DIAGRAM TX UNIT (X56-3120-XX) (A/3) +20dBm CN802 K:450-480MHz--> +20dBm K:450-480MHz--> FINAL UNIT TX oUT K2:477-512MHz--> K2:477-512MHz--> X45-382 (C/5) 13.8V -CN1 T:13.6V R:13.7V CN801 T:13.8V SCLK0 SCLK0 R:13.9V SDo0 SDo0 FINAL UNIT 13.8V X45-382 (C/5) -CN12 CN804 SDo1 CN805...
Page 116 NXR-800 SCHEMATIC DIAGRAM TX UNIT(17SEG) TX UNIT(LED) (X56-3120-XX) (X56-3120-XX) Q975 UMG1N DC SW Q976 UMG1N DC SW IC963 SHIFT-REGISTER Q974 UMG1N DC SW Q973 UMG1N DC SW Q972 UMG1N IC962 SHIFT-REGISTER DC SW Q971 UMG1N CN960 CN920 LED 10 DC SW...
Page 117 NXR-800 SCHEMATIC DIAGRAM TX UNIT (LED) (X56-3120-XX) (B/3) SHIFT-REGISTER IC923 BU4094BCFV STRB DATA SHIFT-REGISTER SHIFT-REGISTER IC924 IC925 BU4094BCFV BU4094BCFV STRB STRB DATA DATA QʼS QʼS QʼS 3-STATE BUFFER IC922 TC7SET126FU-F R922 oUTY C920 0.1u 3-STATE BUFFER 3-STATE BUFFER IC920 IC921...
Page 118 NXR-800 CONTROL UNIT1 (X53-4130-10) SCHEMATIC DIAGRAM AF PA IC29 LA4425A C190 R163 C225 0.1u R441 C436 R469 C103 OP AMP R293 SHIFT R100 R178 R442 BU4094BCFV RESISTER 100p NJM2734V ANALOG SW R294 R127 R133 R448 SCR_PTT MULTIPLEXER IC25 SCR_PTT 50MPU...
Page 119 CONTROL UNIT1 (X53-4130-10) R441 SHIFT RESISTER R442 BU4094BCFV R448 SCR_PTT MULTI 50MPU SCR_PTT STRB BU40 DATA SR_CLK R445 R446 R449 R444 PULL UP SWITCH R443 R457 HN1L02FU(F) QʼS R458 SR_oE 100k R450 CLEAR DATA_iN /CoDE R451 R452 RXEo R453 RXEi R454 TAAD_SW F53-0315-05...
Page 120 C190 R163 OP AMP C436 C103 R469 R100 R178 NJM2734V 100p R133 R127 MULTIPLEXER C122 100p AoUTPUT DoUTPUT C197 BU4053BCFV 100k 120k R175 A-INPUT R400 D-INPUT OP AMP C128 R102 R401 A+INPUT OP AMP IC12 IC21 D+INPUT R103 NJM2732V C177 100p NJM2734V 100p...
Page 121 AF PA IC29 LA4425A C225 0.1u R293 R294 ANALOG SW IC25 TC7S66FUF CLOCK CLOCK SHIFT SW SHIFT SW IN/oUT L77-1987-05 oUT/IN 2SC4738F C275 16.515072MHz C281 2SC4738F C239 NAND GATE CoNT 1000u25 IC23 TC7SH00FU-F AF MUTE SW DTC114EUA AF_MUTE oUTY C215 0.1u POWER SW C408...
Page 122 NXR-800 SCHEMATIC DIAGRAM Note : The components marked with a dot (•) are parts of layer 1. mV:AC voltage value measured with an electronic voltmeter. The unit is mVrms. V:DC voltage value rms:60% modulation TX signal or RX signal DSP_RS...
Page 123 Lo_Vol_DET Lo_VoL_DET TD_SW TD_SW MiCAD_SW MiCAD_SW 3.3V MiC_SW MiC_SW RXAD_SW RXAD_SW PATH_SW PATH_SW BEEP_SW BEEP_SW TA_SW TA_SW TAAD_SW R419 TAAD_SW EVOL_LD EVOL_LD EVOL_CLK EVOL_CLK XC6209B332PR PTT_AM16C R474 VOLTAGE REGULATOR EVOL_DATA EVOL_DATA iNSP_SW AF_MUTE AF_MUTE SCM_EN R438 SCM_EN AMP_SW AMP_SW HooK_RXD_SCM R439 iNRA_SW MiC_D_IN...
Page 124 R131 P10/D8 P07/AN17/D7 P03/AN13/D3 P06/AN16/D6 P02/AN12/D2 P05/AN15/D5 P04/AN14/D4 P01/AN11/D1 P00/AN10/D0 P117 DQ11 P116 C120 1000p P115 C121 DQ13 P114 FLASH MEMORY DQ15/A-1 XC6209B332PR P113 IC17 VOLTAGE REGULATOR VSS1 P112 P111 P110 P107/AN07/KI3 TX_DDS_EN P106/AN06/KI2 TX_PLL_440_EN VSS2 P105/AN05/KI1 TX_PLL_440_CE P104/AN04/KI0 TX_PLL_132_EN P103/AN03 R137 SYS_RST...
Page 125 DSP_RS P125 DSP_iNT P126 P127 P50/WRL/WR R254 R267 P10/D8 P51/WRH/BHE P07/AN17/D7 P52/RD P06/AN16/D6 R268 P05/AN15/D5 P53/BCLK STB_L P04/AN14/D4 P130 P131 PAG_SW_L P132 TX_SR_oE P133 RSSi P54/HLDA R270 P55/HoLD IC34 R269 3625MGP396GP CP24 P56/ALE HRDY P57/RDY/CLKoUT TX_SR_EN P134 TX_VR_EN SR_DATA_C P135 P136 SR_CLK_C P137...
Page 126 RX_iF_BW2 R364 iF_BW_SW AD_DAT_WRiTE RX_iF_BW1 R374 NC(iF_NW_SW) AD_CLK RX_SDi0 R365 AD_DAT_READ CoNT_5.0V RX_LoCK_DET R366 PLL_LoCK_DET AGC_RSSi RX_PLL2_EN R367 PLL2_EN RSSi R368 FM_RSSi CN61 RX_PLL_PWR_SAVE R375 PLL_PWR_SAVE R359 RX_AUDio RX_SDo0 R376 SiF_DAT RX_SCLK0 R369 SiF_CLK RX_3DA_EN R377 DA_EN RX_PLL1_EN R370 PLL1_EN RX_VCo_BAND_SW R371 VCo_BAND_SW...
Page 127 NXR-800 SCHEMATIC DIAGRAM CONTROL UNIT2 (X53-4140-10) C359 0.1u R484 33MPU 33MPU-2 BUFFER IC300 TC7SET126FU-F oUTY BER_CLK_L BER_EN C360 0.1u BUFFER IC301 TC7SET126FU-F oUTY BER_DAT_L BER_EN CN400 50MPU BER_DAT R516 C516 R517 BER_CLK REF_SW2 R322 REF_SW2 R518 R960 1000p oCXo_ST_G IC329...
Page 128 NXR-800 SCHEMATIC DIAGRAM CONTROL UNIT2 (X53-4140-10) C359 0.1u 33MPU BUFFER IC300 TC7SET126FU-F oUTY BER_CLK_L BER_EN C360 0.1u BUFFER IC301 TC7SET126FU-F oUTY BER_DAT_L BER_EN CN400 50MPU BER_DAT BER_CLK REF_SW2 R322 REF_SW2 WP(SYS-RST) R927 SYS_RST R323 REF_SW REF_SW oX_SCL R928 oX_SCL VSS2...
Page 129 R484 33MPU-2 R516 C516 R517 R518 1000p oCXo_ST_G D_A3 VSS2 oCXo_ST_R R662 BER_DAT_L D_A7 P125 D_D7 R663 BER_CLK_L D_CS1 P126 D_D6 R664 P127 D_D5 D_A11 P50/WRL/WR FLASH MEMORY D_D4 D_WR D_A15 P51/WRH/BHE VSS1 IC314 D_D3 D_RD D_A2 P52/RD DQ15/A-1 D_D2 D_A6 P53/BCLK DQ13...
Page 130 R960 R961 _DAT_L PC CONTROL _CLK_L CN713 D_WR D_RD 33MPU-2 VOL_LD S700 L_DATA S79-0473-05 EARTH_3 OL_CLK R702 R703 R709 100k R710 100k C818 0.1u C750 BUFFER IC725 RS-232C TC7SH126FU-F DRIVER/RECIEVER D701 oUTY IC705 ADM3202ARUZ 1SS388F C751 C746 C747 0.01u T1oUT C748 R1IN R1oUT...
Page 131 R960 IC329 R960 R961 0-10 – – R961 0-11 BA33DD0WT – for service Note : The components marked with a dot (•) are parts of layer 1. C781 0.1u NAND GATE IC711 TC7SH00FU-F oUTY C850 C799 0.01u R919 R902 CP792 R903 C841 R920...
Page 132 VOLTAGE PROTECTOR R371 D702 1SS355 R932 HooK_RXD_SCM AMP_SW R372 AMP_SW 33MPU SCM_EN R933 SCM_EN R951 AF_MUTE R373 AF_MUTE iNSP_SW R948 100k EVOL_DATA R374 EVOL_DATA PTT_AM16C R946 BUFFER EVOL_CLK R375 EVOL_CLK IC728 TC7SH126FU-F EVOL_LD R376 EVOL_LD oUTY R916 TAAD_SW TAAD_SW TA_SW R377 TA_SW BEEP_SW...
Page 133 INT1 R651 INT0 R626 R446 R460 EMU0_D D_A1 HBIL IACK D_D4 R607 R461 EMU1_D BDX2 R608 TX_CoSDTi BDX0 D_D0 C584 D_D5 DVSS6 0.01u DVDD4 CVDD6 R627 TX_DSP_RDY C576 HRDY IC324 CVSS10 D_RD BFSX2 0.01u HDS1 R609 TX_CoLRCK BFSX0 C583 DVSS8 VOCODER D_WR CVDD4...
Page 134 VSSQ2 BU4829FVE CAN0_RX/AUDATA<2> VSSQ3 VSSQ4 CAN1_TX/AUDATA<1> D_A1 CAN0_TX/AUDATA<0> VSSQ5 R917 VoUT RESERVED/AUDATA<3> VSSQ6 VSSQ7 RESERVED/AUDATA<2> R909 VSSQ8 RESERVED/AUDATA<1> TAAD ADTRG/AUDATA<0> VSSQ9 RXAD RESERVED/AUDSYNC AVSS_ADC IC703 VSSQ10 RESERVED/AUDCK VSSQ11 TRST VSSQ12 VSSQ13 VSSQ14 VSSQ15 VSSQ16 ASEBRK/BRKACK VSSQ17 VSSQ18 MD6/IoIS16 VSSQ19 VSSQ20 R712 VDD-PLL1 MD4/CE2B...
Page 135 4829FVE IC708 VOLTAGE IC720 R830 DETECTOR AT93C4610SU1.8 100k EECS 3.3V VoUT EESK EEDo EEDi TAAD_SW RXAD_SW C802 0.1u CONTROL SW IC721 TC7SH08FU-F Q706 DTC114EUA oUTY R781 100k R782 100k R794 100k R783 100k AND GATE R784 100k CE2A R785 2.7k C812 R786 100k...
Page 136: Optional Accessories
NXR-800 OPTIONAL ACCESSORIES: KES-5 (EXTERNAL SPEAKER) When Using an External Speaker Speciﬁ cations 1. Make sure the unit’s power is tuned off. Maximum input power ........... 40W 2. When using the external speaker, remove the jumper Impedance ................. 4Ω lead from the connector, and attach the speaker cable.
Page 137: Specifications
...... 19.02" x 1.73" x 13.03" (483 x 44 x 331 mm) *1: Analog measurements made per TIA/EIA 603. Weight ..............11 lbs (5kg) Without *1: Analog measurements made per TIA/EIA 603A. KENWOOD reserves the right to change speciﬁ cations with- out prior notice or obligation. Transmitter RF Power Output ............5~0.5W Spurious &...
Page 138 NXR-800 NXR-800 PC BOARD PC BOARD FINAL UNIT (X45-3820-XX) -10 : K -11 : K2 FINAL UNIT (X45-3820-XX) -10 : K -11 : K2 Component side view (J79-0149-09) Component side view (J79-0149-09) CN20 L702 C709 IC701 SIGNAL IC12 C702 R144...
Page 139 NXR-800 NXR-800 PC BOARD PC BOARD FINAL UNIT (X45-3820-XX) -10 : K -11 : K2 FINAL UNIT (X45-3820-XX) -10 : K -11 : K2 Foil side view (J79-0149-09) Foil side view (J79-0149-09) C170 R106 R138 R137 R110 R136 C167 C150...
Page 140 NXR-800 NXR-800 PC BOARD PC BOARD RX UNIT (X55-3100-XX) -10 : K -11 : K2 RX UNIT (X55-3100-XX) -10 : K -11 : K2 Component side view (J79-0151-09) Component side view (J79-0151-09) CN46 L132 L133 L134 L135 NARROW CN41 WIDE...
Page 141 NXR-800 NXR-800 PC BOARD PC BOARD RX UNIT (X55-3100-XX) -10 : K -11 : K2 RX UNIT (X55-3100-XX) -10 : K -11 : K2 Foil side view (J79-0151-09) Foil side view (J79-0151-09) C242 C235 C150 C141 C174 C289 C167 C197...
Page 142 NXR-800 NXR-800 PC BOARD PC BOARD TX UNIT (X56-3120-XX) -10 : K -11 : K2 TX UNIT (X56-3120-XX) -10 : K -11 : K2 Component side view (J79-0153-09) Component side view (J79-0153-09) C151 C811 C805 R801 C801 C812 L801 C803...
Page 143 NXR-800 NXR-800 PC BOARD PC BOARD TX UNIT (X56-3120-XX) -10 : K -11 : K2 TX UNIT (X56-3120-XX) -10 : K -11 : K2 Foil side view (J79-0153-09) Foil side view (J79-0153-09) C154 R134 IC104 R137 C481 R891 C158 R511...
Page 144 NXR-800 NXR-800 PC BOARD PC BOARD CONTROL UNIT (X53-4130-XX) -10 : K,K2 -11 : For service CONTROL UNIT (X53-4130-XX) -10 : K,K2 -11 : For service Component side view (J79-0011-09) Component side view (J79-0011-09) C372 R389 R550 R551 CN56 SPG 2...
Page 145 NXR-800 NXR-800 PC BOARD PC BOARD CONTROL UNIT (X53-4130-XX) -10 : K,K2 -11 : For service CONTROL UNIT (X53-4130-XX) -10 : K,K2 -11 : For service Foil side view (J79-0011-09) Foil side view (J79-0011-09) CN69 R475 R434 C500 C415 C403...
Page 146 NXR-800 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service Component side view (J79-0012-09) Component side view (J79-0012-09) CN713 IC329 C862 S700 R389 C443 C572 L325 IC306...
Page 147 NXR-800 PC BOARD CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service CONTROL UNIT (X53-4140-XX) -10 : K,K2 -11 : For service Foil side view (J79-0012-09) Foil side view (J79-0012-09) C574 R680 C861 C570 R730 C730 C747 R319 R318...
Page 148 POWER MODULE IC10 RA13H4452M101 FINAL UNIT(PA SECTION) (X45-3820-XX)(A/5) TX H:3.8V TX H:13.7V TX H:5W L:3.3V L:13.8V ANT SW TX:100mW L:0.5W :13.8V RX:0W 3DB ATT RF SW RF SW DIRECTIONAL COUPLER TX UNIT C105 C122 C123 CN22 C141 R125 TX ANT X56-312 (A/3)-CN802 RF IN 470p...
Page 149 RX UNIT(X55-3100-XX) W:7.8V W:7.8V RF SW N:0.5mV N:0.2mV W:3.7V W:7.4V W:7.3V CN43 RX_IF_VN CONTROL UNIT W:-93.2dBm W:-90dBm N:5.2mV N:0.5mV N:4.6mV W:3.2V W:3.2V L112 W:-75.7dBm N:-92.3dBm N:-90.5dBm JDP4P02U RF AMP N:0.6mV N:0.2mV L39-1476-05 N:-75.5dBm L128 X53-414 -CN300 W:3.6V L123 L34-4725-05 DC SW L71-0646-05 N:4.3mV RD01MUS1...
Page 150 TX UNIT(X56-3120-XX)(A/3) +20dBm C189 C193 C194 K:450-480MHz--> K:450-480MHz--> K:450-480MHz--> K:450-480MHz--> K:450-480MHz--> K:450-480MHz--> K:450-480MHz--> +20dBm K:450-480MHz--> CN802 E100 K2:477-512MHz--> K2:477-512MHz--> K2:477-512MHz--> K2:477-512MHz--> K2:477-512MHz--> K2:477-512MHz--> K2:477-512MHz--> K2:477-512MHz--> TX oUT FINAL UNIT F10-3081-04 VOLTAGE X45-382 (C/5) Q102 K:450-465MHz --> REGULATOR 13.8V 13.8V 13.8V 13.8V 13.8V 13.8V...
Page 151 TX UNIT(17SEG) TX UNIT(LED) (X56-3120-XX) (X56-3120-XX) Q975 UMG1N DC SW Q976 UMG1N DC SW IC963 SHIFT-REGISTER Q974 UMG1N DC SW Q973 UMG1N DC SW SHIFT-REGISTER IC923 Q972 BU4094BCFV UMG1N IC962 STRB SHIFT-REGISTER DC SW DATA SHIFT-REGISTER SHIFT-REGISTER IC924 IC925 BU4094BCFV Q971 BU4094BCFV UMG1N...
Page 152 CONTROL UNIT1 (X53-4130-10) AF PA IC29 LA4425A C190 R163 C225 0.1u R441 C436 R469 C103 OP AMP R293 SHIFT R100 R178 R442 BU4094BCFV RESISTER 100p NJM2734V ANALOG SW R294 R127 R133 R448 SCR_PTT MULTIPLEXER IC25 SCR_PTT 50MPU C122 100p STRB AoUTPUT TC7S66FUF DoUTPUT...
Page 153 CONTROL UNIT2 (X53-4140-10) C359 0.1u R484 33MPU 33MPU-2 BUFFER IC300 TC7SET126FU-F oUTY BER_CLK_L BER_EN C360 0.1u BUFFER IC301 TC7SET126FU-F oUTY BER_DAT_L BER_EN CN400 50MPU BER_DAT R516 C516 R517 BER_CLK REF_SW2 R322 REF_SW2 R518 R960 1000p oCXo_ST_G IC329 R960 R961 WP(SYS-RST) R927 SYS_RST REF_SW...
Page 154 IC12 : N09-2292-05 17x3 IC11 M2 x 8 : N30-2008-43 D M2.6 x 6 : N30-2606-48 X45-382 X53-414 M3 x 16 : N30-3016-43 IC329 M3 x 6 (F) : N32-3006-43 IC10 G M4 x 8 (F) : N32-4008-43 703x3 : N67-3008-48 : N80-2006-43 : N80-2608-43 M2.6 x 8 (Br-Tap) : N87-2608-48...
Page 155 NXR-800 BLOCK DIAGRAM IC300 IC325 TC7SET126FU-F CONTROL UNIT 3625MGP396GP 465~480MHz (K) 450~465MHz (K) BER_CLK BER_CLK_L CN402 494.5~512~308MHz (K2) 477~494.5MHz (K2) X53-414 FINAL UNIT BER_EN BER_DAT CN802 Q202 Q201 TX UNIT X45-382 A/5 Q203 IC603 CN402 BER_DAT_L 450~480MHz (K) RD01MUS1 2SC5337...
Page 156 NXR-800 INTERCONNECTION DIAGRAM TEST/SPKR (PANEL ViEW) FINAL UNIT CONTROL I/O (PANEL VIEW) X45-382 E/5 CN923 CN905 CN960 CN920 VOLUME_IN VOLUME_IN 33MPU 33MPU J901 50MPU 50MPU 33AUD 33AUD TX UNIT X56-312 B/3 TX UNIT PTT_TXD_SCM SR_oE X56-312 C/3 SR_oE SCM_EN SCM_EN...

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